Tacna, AZ Weather & Growing Conditions
Today
108°F
Sunny
Sunny. High near 108, with temperatures falling to around 106 in the afternoon. Heat index values as high as 115. South wind 5 to 15 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 108°F | Sunny | 5 to 15 mph S | 2% |
| Tonight | 84°F | Mostly Clear | 5 to 15 mph SSE | 2% |
| Wednesday | 107°F | Mostly Sunny | 5 to 10 mph SSE | 3% |
| Wednesday Night | 84°F | Partly Cloudy | 0 to 10 mph S | 3% |
| Thursday | 110°F | Sunny | 0 to 10 mph S | 5% |
| Thursday Night | 87°F | Partly Cloudy | 0 to 5 mph SSW | 5% |
| Friday | 112°F | Sunny | 0 to 10 mph SSW | 5% |
| Friday Night | 88°F | Mostly Clear | 0 to 10 mph SSW | 5% |
| Saturday | 113°F | Sunny | 0 to 10 mph S | 5% |
| Saturday Night | 87°F | Mostly Clear | 5 to 10 mph S | 9% |
| Sunday | 109°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSE | 15% |
| Sunday Night | 84°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph SSE | 15% |
| Monday | 107°F | Sunny | 5 to 10 mph S | 5% |
| Monday Night | 83°F | Partly Cloudy | 5 to 10 mph S | 5% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Tacna, AZ
Last spring frost
Feb 13
First fall frost
Dec 1
Growing season
288 days
Hardiness zone
9b
Explore more for Tacna, AZ: full frost dates · planting calendar · Arizona frost dates
Climate data from the nearest NOAA station, Tacna 3 Ne, Az (7.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.